I'm trying to use react Icon with AgGrid but I didn't succeed.

I'm using a function that render a text and a function to render the icon but I get this result

this is the render inside the AgGrid:

cellRenderer={(params) => checkStatus(params.value) + " / " + checkEvaluationStatus(params.value)}

this is the function to render the icon:

 const checkEvaluationStatus = (params) => {
       if (params == 0) {
      return (
        <FcApprove />
      )
    }
    else {
      console.log('in')
      return (
        <FcApproval />
      )
    }
  };

NB: when I call the function outside the AgGrid and give it a parameter it works perfectly.